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公开(公告)号：US08687666B2
公开(公告)日：2014-04-01
申请号：US12980144
申请日：2010-12-28
IPC分类号： H01S3/08
CPC分类号： G01B9/02091 , A61B5/0066 , A61B5/0075 , G01N21/4795 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/141 , H01S5/4012 , H01S5/4062 , H01S5/4068
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal for form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm. In embodiments, the swept sources are tunable lasers that have shared laser cavities.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开的干涉仪，以及用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。 在实施例中，扫描光源是具有共享激光腔的可调激光器。
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公开(公告)号：US08526472B2
公开(公告)日：2013-09-03
申请号：US12776373
申请日：2010-05-08
CPC分类号： F21V9/00 , G01B9/02004 , G01B9/02091 , H01S5/005 , H01S5/0064 , H01S5/0078 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/5018 , H01S5/5036 , H01S5/5063 , H01S2301/02
摘要： An integrated swept wavelength tunable optical source uses a narrowband filtered broadband signal with an optical amplifier and self-tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal. The self-tracking arrangement is used where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.
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公开(公告)号：US20110182550A1
公开(公告)日：2011-07-28
申请号：US12693181
申请日：2010-01-25
CPC分类号： G01Q60/22 , A61B5/0066 , A61B5/0084 , A61B5/02007 , A61B2562/12 , G02B23/2469
摘要： An optical probe for emitting and/or receiving light within a body comprises an optical fiber that transmits and/or receives an optical signal, a silicon optical bench including a fiber groove running longitudinally that holds an optical fiber termination of the optical fiber and a reflecting surface that optically couples an endface of the optical fiber termination to a lateral side of the optical bench. The fiber groove is fabricated using silicon anisotropic etching techniques. Some examples use a housing around the optical bench that is fabricated using LIGA or other electroforming technology. A method for forming lens structure is also described that comprises forming a refractive lens in a first layer of a composite wafer material, such as SOI (silicon on insulator) wafers and forming an optical port through a backside of the composite wafer material along an optical axis of the refractive lens. the refractive lens is preferably formed using grey-scale lithography and dry etching the first layer.
摘要翻译： 用于在体内发射和/或接收光的光学探针包括透射和/或接收光信号的光纤，包括纵向延伸的光纤槽的硅光学台，其保持光纤的光纤终端和反射 表面，其将光纤端接件的端面光学耦合到光学平台的侧面。 使用硅各向异性蚀刻技术制造纤维槽。 一些例子使用使用LIGA或其他电铸技术制造的光学平台周围的外壳。 还描述了一种用于形成透镜结构的方法，其包括在诸如SOI（绝缘体上硅）晶片的复合晶片材料的第一层中形成折射透镜，并沿着光学器件通过复合晶片材料的背面形成光学端口 折射透镜的轴线。 折射透镜优选使用灰度光刻形成并且对第一层进行干蚀刻。
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公开(公告)号：US20110080591A1
公开(公告)日：2011-04-07
申请号：US12572925
申请日：2009-10-02
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B9/02004 , G01B9/02007 , G01B9/02069 , H01S3/1062 , H01S3/2383 , H01S5/141
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal for form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开的干涉仪，以及用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。
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公开(公告)号：US20110051148A1
公开(公告)日：2011-03-03
申请号：US12553295
申请日：2009-09-03
CPC分类号： G02B5/22 , G01B9/02004 , G01B9/02091 , G01J3/10 , G01J3/26 , G01J3/4338 , G01N21/4795
摘要： An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a first tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal, and a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.
摘要翻译： 集成扫描波长光源使用经滤波的ASE信号与光放大器和跟踪滤波器。 该源包括安装在工作台上的用于产生宽带光源的微型光学平台，用于产生宽带光源的第一可调谐法布里珀罗滤波器，用于对来自宽带源的宽带光进行频谱滤波以产生窄带可调谐信号，放大器，安装在 用于放大可调信号的工作台，以及安装在工作台上的第二个可调谐法布里珀罗滤波器，用于对来自放大器的放大的可调谐信号进行频谱滤波。 单个可调谐滤波器既可以生成窄带信号又对放大的信号进行频谱滤波，则自我跟踪装置也是可能的。 在一些实例中，提供了两级放大。 使用单台实现产生低成本的高性能系统。 例如，不再需要组件之间的极化控制。
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公开(公告)号：US07242509B2
公开(公告)日：2007-07-10
申请号：US11380686
申请日：2006-04-28
IPC分类号： G02F1/03
CPC分类号： G01J3/36 , G01J3/0256 , G01J3/10 , G01J3/26 , G01N21/255
摘要： Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.
摘要翻译： 公开了集成光谱系统。 在一些示例中，提供使用一个或多个法布里 - 珀罗可调滤波器的集成可调谐检测器。 其他示例使用集成的可调源。 可调谐源组合了一个或多个二极管，例如超发光发光二极管（SLED）和法布里珀罗可调滤波器或标准具。 与可调谐标准具的使用相关的优点是它可以是小的，相对较低的功率消耗装置。 例如，这些器件的较新的微电机械系统（MEMS）实现使其成为芯片的尺寸。 这增加了它们的稳健性和性能。 在一些示例中，还集成了隔离器，放大器和/或参考系统。
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公开(公告)号：US07671981B1
公开(公告)日：2010-03-02
申请号：US11769488
申请日：2007-06-27
申请人： Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
发明人： Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
IPC分类号： G01N21/00
CPC分类号： G01N21/39 , G01J3/10 , G01J3/26 , G01J3/4338 , G01J9/00 , G01N21/3554 , G01N21/3559
摘要： A tunable laser spectroscopic carpet identification system comprises a tunable laser spectroscopy system for generating a tunable signal that is transmitted to a carpet sample. The system detects the tunable signal after interaction with the carpet sample so that an analyzer is able to relate a spectral response of the carpet sample to a chemical composition of the carpet sample. In one example, the spectroscopy system comprises a laser cavity in which the tunable signal is generated, a semiconductor gain medium in the laser cavity, and a tunable element for controlling a wavelength of tunable signal generated in the laser cavity. To deal with variations in water content, the analyzer estimates a water content of the carpet sample using the spectral response of the carpet sample and then determines the chemical composition of the carpet sample in part based on the estimate of the water content.
摘要翻译： 可调激光光谱地毯识别系统包括可调谐激光光谱系统，用于产生传输到地毯样品的可调信号。 该系统在与地毯样品相互作用后检测可调信号，使得分析仪能够将地毯样品的光谱响应与地毯样品的化学成分相关联。 在一个示例中，光谱系统包括其中产生可调信号的激光腔，激光腔中的半导体增益介质和用于控制在激光腔中产生的可调信号的波长的可调元件。 为了处理含水量的变化，分析器使用地毯样品的光谱响应估计地毯样品的含水量，然后基于含水量的估计部分地确定地毯样品的化学成分。
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28.发明授权Method and system for reducing parasitic spectral noise in tunable semiconductor source spectroscopy system 有权用于减少可调谐半导体光谱系统中寄生光谱噪声的方法和系统公开(公告)号：US07375812B2
公开(公告)日：2008-05-20
申请号：US11062896
申请日：2005-02-22
申请人： Walid A. Atia , Dale C. Flanders
发明人： Walid A. Atia , Dale C. Flanders
IPC分类号： G01N21/00
CPC分类号： G01J3/10 , G01J3/02 , G01J3/0218 , G01J3/0251 , G01J3/26 , G01J3/433
摘要： A spectroscopy system comprises a tunable semiconductor laser, such as an external cavity laser, that generates a tunable signal. A detector is provided for detecting the tunable signal after interaction with a sample. In this way, the system is able to determine the spectroscopic response of the sample by tuning the laser of the scan band and monitoring the detector's response. An integrating device, such as an integrating sphere, is interposed optically between the tunable semiconductor laser and the detector. This integrating device is used to mitigate the effects of parasitic spectral noise, such as noise that is generated by speckle or the combination of single-and multi-mode optical fibers in the transmission link between the tunable semiconductor laser and the detector.
摘要翻译： 光谱系统包括可调谐半导体激光器，例如外腔激光器，其产生可调信号。 提供了一种检测器，用于在与样品相互作用后检测可调信号。 以这种方式，该系统能够通过调谐扫描带的激光并监测检测器的响应来确定样品的光谱响应。 诸如积分球的积分装置被光学地插入在可调半导体激光器和检测器之间。 该积分装置用于减轻寄生光谱噪声的影响，例如在可调谐半导体激光器和检测器之间的传输链路中由斑点产生的噪声或单模和多模光纤的组合。
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公开(公告)号：US07406107B2
公开(公告)日：2008-07-29
申请号：US10953048
申请日：2004-09-29
申请人： Dale C. Flanders , Xinfa Ma , Walid A. Atia
发明人： Dale C. Flanders , Xinfa Ma , Walid A. Atia
IPC分类号： H01S3/10
CPC分类号： G01N21/39 , G01J1/4257 , G01J3/02 , G01J3/0213 , G01J3/0256 , G01J3/10 , G01J3/26 , G01J3/433 , G01J2003/2866 , G01N2021/391 , G01N2021/399 , G01N2201/08 , H01S3/08013 , H01S3/083 , H01S5/005 , H01S5/0064 , H01S5/02252 , H01S5/141
摘要： An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.
摘要翻译： 用于半导体源光谱系统的光功率控制系统控制来自光谱系统的可调谐信号中的功率波动，从而改善系统的噪声性能。 该通用解决方案相对于在扫描期间简单地检测参考功率电平然后在与样品相互作用之后校正检测到的信号的其它系统具有优点，通过减少协调样品检测器和功率或参考检测器的操作的要求。 光谱系统包括半导体源和可调谐滤波器。 半导体源和可调信号的组合用可调信号照射样品，可在扫描带上调谐。 功率控制系统包括用于检测可调谐光信号的功率的振幅检测器系统和用于响应于其检测到的功率来调节可调谐光信号的幅度的功率控制系统。
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30.发明授权Tunable laser with polarization anisotropic amplifier for fabry-perot filter reflection isolation 有权具有极化各向异性放大器的可调谐激光器，用于fabry-perot滤光镜反射隔离公开(公告)号：US06339603B1
公开(公告)日：2002-01-15
申请号：US09696055
申请日：2000-10-25
IPC分类号： H01S310
CPC分类号： H01S5/141 , H01S5/02248 , H01S5/0264 , H01S5/0617 , H01S5/0687 , H01S5/142
摘要： A semiconductor tunable laser system includes a tunable Fabry-Perot cavity and a cavity length modulator, which controls an optical length of the cavity at least over a distance corresponding to the spacings between the longitudinal modes of the laser cavity. Thus, the tunable Fabry-Perot cavity allows the laser cavity to have gain at the desired wavelength of operation while the cavity length modulator tunes the cavity length such that a longitudinal cavity mode exists at the desired wavelength of operation. Also, in one embodiment, a wavelength locker system is further provides that has a differential wavelength filter, e.g., stepped etalon, and a multi-element detector, e.g., a quad-detector. The controller then modulators the Fabry-Perot cavity to control the wavelength in response to the signal received from the multi-element detector.
摘要翻译： 半导体可调谐激光器系统包括可调谐的法布里 - 珀罗腔和空腔长度调制器，其控制空腔的光学长度至少在与激光腔的纵向模式之间的间隔相对应的距离上。 因此，可调谐法布里 - 珀罗腔允许激光腔在所需的操作波长下具有增益，而空腔长度调制器调谐腔长度，使得在期望的操作波长处存在纵向腔模式。 而且，在一个实施例中，还提供波长锁存器系统，其具有差分波长滤波器，例如阶梯式标准具，以及多元件检测器，例如四检测器。 然后，控制器调制法布里 - 珀罗腔，以响应于从多元件检测器接收到的信号来控制波长。
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